An Introductory Course of Quantitative Chemical Analysis
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In our eReader you can find the full English version of the book. Read An Introductory Course of Quantitative Chemical Analysis Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book An Introductory Course of Quantitative Chemical Analysis
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From the following data, calculate the percentages ofNa_{2}CO_{3} and NaOH in an impure mixture. Weight of sample, 1. 500grams; HCl (0. 5 N) required for phenolphthalein end-point, 28. 85 cc. ;HCl (0. 5 N) required to complete the titration after adding methylorange, 23. 85 cc.
!Answers!: 6. 67% NaOH; 84. 28% Na_{2}CO_{3}.
24. A sample of sodium carbonate containing sodium hydroxide weighs1. 179 grams. It is titrated with 0. 30 N hydrochloric acid, usingphenolphthalein in cold solution as an in...dicator and becomes colorlessafter the addition of 48. 16 cc. Methyl orange is added and 24. 08 cc. Are needed for complete neutralization. What is the percentage of NaOHand Na_{2}CO_{3}?
!Answers!: 24. 50% NaOH; 64. 92% Na_{2}CO_{3}.
25. From the following data, calculate the percentages of Na_{2}CO_{3}and NaHCO_{3} in an impure mixture. Weight of sample 1. 000 gram;volume of 0. 25 N hydrochloric acid required for phenolphthaleinend-point, 26. 40 cc. ; after adding an excess of acid and boiling outthe carbon dioxide, the total volume of 0.
What to read after An Introductory Course of Quantitative Chemical Analysis?
You can find similar books in the "Read Also" column, or choose other free books by Talbot Henry P. to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
From the following data, calculate the percentages ofNa_{2}CO_{3} and NaOH in an impure mixture. Weight of sample, 1. 500grams; HCl (0. 5 N) required for phenolphthalein end-point, 28. 85 cc. ;HCl (0. 5 N) required to complete the titration after adding methylorange, 23. 85 cc.
!Answers!: 6. 67% NaOH; 84. 28% Na_{2}CO_{3}.
24. A sample of sodium carbonate containing sodium hydroxide weighs1. 179 grams. It is titrated with 0. 30 N hydrochloric acid, usingphenolphthalein in cold solution as an in...dicator and becomes colorlessafter the addition of 48. 16 cc. Methyl orange is added and 24. 08 cc. Are needed for complete neutralization. What is the percentage of NaOHand Na_{2}CO_{3}?
!Answers!: 24. 50% NaOH; 64. 92% Na_{2}CO_{3}.
25. From the following data, calculate the percentages of Na_{2}CO_{3}and NaHCO_{3} in an impure mixture. Weight of sample 1. 000 gram;volume of 0. 25 N hydrochloric acid required for phenolphthaleinend-point, 26. 40 cc. ; after adding an excess of acid and boiling outthe carbon dioxide, the total volume of 0.
What to read after An Introductory Course of Quantitative Chemical Analysis?
You can find similar books in the "Read Also" column, or choose other free books by Talbot Henry P. to read onlineMoreLess
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